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In other words, only use disk utilities that are compatible with the version of Mac OS X you are using. Note: Use only the hardware tests of third-party utilities that combine hardware testing and disk utilities, such as TechTool Pro and TechTool Deluxe, unless the version of your third-party utility also includes disk utilities that are compatible with your version of Mac OS X. The freeware utility Rember provides a graphical user interface (GUI) to Memtest. The freeware command-line utility Memtest has been used by many to successfully test RAM.

#Techtool pro 10 download mac upgrade#

An inexpensive upgrade from TechTool Deluxe to TechTool Pro is available from Micromat.

If you purchased an AppleCare Protection Plan, your may have received a Micromat TechTool Deluxe CD that includes some hardware tests.

TechTool Pro 4.5.x or later is available as a Universal Binary for both PowerPC- and Intel-based Macs.

Micromat® TechTool® Pro includes a comprehensive suite of hardware tests applicable to all Macs.

If your Mac predates the inclusion of the Apple Hardware Test with new computers, you can use the following third-party utilities to test your hardware: via either the power button or if your Mac is so equipped the Reset button, when you have started up from the Apple Hardware Test should not cause problems. This can be difficult to do in Loop Mode.

Clicking the Cancel or Stop Test buttons.

Pressing the Command-period keyboard shortcut, i.e.

If no problems are found after running the Extended Test in Loop Mode overnight, you can stop the Extended Test and exit Loop Mode by either: Intermittent RAM problems may take many loops to appear: let the test run overnight. If the test fails, be sure to write down the exact message associated with the failure. If a problem is found, the test will cease to loop, indicating the problem it found. The test will run continuously until a problem is found.

Looping On should appear in the right window. If Loop Mode is supported by the version of the Apple Hardware Test you are using, you run the Extended Test in Loop Mode by pressing Control-L before starting the test. It is especially useful when troubleshooting intermittent kernel panics. Running the Apple Hardware Test in Loop Mode overnight is an excellent troubleshooting step for finding intermittent hardware problems. Running the Apple Hardware Test in Loop Mode

You may want to run the Extended Test several times in a row as intermittent problems may not show up in every execution of the test.

#Techtool pro 10 download mac how to#

Your Mac will start up from the Apple Hardware Test volume.Ĭonsult the printed manual that accompanied your Mac for instructions on how to use the Apple Hardware Test that shipped with your computer.Īfter starting up from the Apple Hardware Test, run the Extended Test. When the wristwatch progress indicator disappears indicating that the Startup Manager's scan for bootable volumes has completed select the Apple Hardware Test volume.įor an illustrated example, see the AppleCare Knowledge Base document "PowerBook G4 (17-inch): How to Run Apple Hardware Test."Ĭlick the right-pointing arrow. Release the Option key after the Startup Manager appears on your display. Immediately press and hold the Option key on the keyboard.

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Insert the Install Disc 1 DVD that came with your computer into its optical drive. Note: If you have a MacBook Air®, see the AppleCare Knowledge Base document "MacBook Air: Using Apple Hardware Test."Ī PowerPC-based Mac with an Apple Hardware Test volume on Install Disc 1: See the AppleCare® Knowledge Base document "Intel-based Macs: Using Apple Hardware Test." Release the C key after the Apple Hardware Test appears on your display and indicates that it is loading. Immediately press and hold the C key on your keyboard. Pressing the Command-Control-Eject keyboard shortcut.Insert the Apple Hardware Test disc that came with your Mac into your Mac's optical drive. Start up from it as you would any other bootable disc: To run the Apple Hardware Test, you must start up from the disc or volume containing the test: If you have: Each Apple Hardware Test is specific to the type and model of Mac with which it was distributed. It is now distributed on a special volume on the Mac OS X Install Disc 1 DVD included with the computer. The Apple Hardware Test was originally distributed on an Apple Hardware Test CD. This FAQ is based on the "Hardware Testing" chapter of our book, Troubleshooting Mac® OS X. If your Mac predates the inclusion of the Apple Hardware Test, see the section "My Mac predates the Apple Hardware Test" below. The Apple® Hardware Test is an important troubleshooting utility that began shipping with new Macintosh® computers sometime in the year 2000.